Choi Cheol-han
Full name	Choi Cheol-han
Hangul	최철한
Hanja	崔哲瀚
Revised Romanization	Choe Cheol-han
McCune–Reischauer	Ch'oe Ch'ŏl-han
Born	South Korea
Residence	South Korea
Teacher	Kweon Kab-yong
Turned pro	1997
Rank	9 dan
Affiliation	Hanguk Kiwon

Choi Cheol-han

Medal record
Representing  South Korea
Asian Games
	2010 Guangzhou	Men's Team
	2010 Guangzhou	Mixed doubles

Choi Cheol-han (Korean: 최철한) is a South Korean professional Go player. He is the fourth youngest (12 years 2 months) to become a professional Go player in South Korean history behind Cho Hun-hyun (9 years 7 months), Lee Chang-ho (11 years 1 months) and Cho Hye-yeon (11 years 10 months).^[1] His nickname is "The Viper".

Choi became a professional when he was 12 years old. He began playing Go at the age of seven, studying with Lee Sedol in Kweon Kab-yong's academy in Seoul. At that time, Choi was considered the next Lee Sedol.^[2]

Rank	Year	Notes
1 dan	1997
2 dan	1998
3 dan	1999
4 dan	2001
5 dan	2002
6 dan	2003	Won the 8th Chunwon against Won Seongjin.
7 dan	2004	Won the 47th Kuksu against Lee Changho.
8 dan	2004	Won the 15th Kisung against Lee Changho.
9 dan	2004	For his performance in the 2004 Korean Baduk League.

• 2006: 58 wins, 29 losses^[3]
• 2007: 45 wins, 25 losses^[4]
• 2008: 50 wins, 18 losses^[5]
• 2009: 56 wins, 18 losses^[6]
• 2010: 63 wins, 22 losses^[7]
• 2011: 50 wins, 24 losses^[8]

As of 17 December 2017

Ranks tenth in total number of titles in Korea.

Domestic
Title	Wins	Runners-up
KT Cup		1 (2002)
Chunwon	4 (2003-2004, 2010-2011)	2 (2012-2013)
Kisung	1 (2004)	2 (2005, 2007)
Guksu	3 (2004-2005, 2011)	3 (2006, 2011-2012)
King of Kings		1 (2005)
GS Caltex Cup	1 (2005)	3 (2006, 2014-2015)
KBS Cup		1 (2006)
Maxim Cup	3 (2009-2010, 2015)	2 (2006, 2012)
Siptan	1 (2012)
Myungin	1 (2013)
Total	14	15
Continental
Title	Wins	Runners-up
China-Korea Tengen		3 (2004-2005, 2011)
Total	0	3
International
Title	Wins	Runners-up
Fujitsu Cup		1 (2005)
Zhonghuan Cup	1 (2005)
Ing Cup	1 (2009)	1 (2005)
Total	2	2
Career Total
Total	16	20

Season	Team	Place	Record
2007	Team World Meridian (Captain)	6th place	6–7[9]
2008	Team No. 1 Fire Insurance	4th place	12–4[10]
2009	Team Hite Jinro (Captain)	6th place	9–3[11]
2010	Team Hite Jinro (Captain)	4th place	10–7[12]
2011	Team Hite Jinro (Captain)	Runners-up	13–4[13]

Season	Team	Place	Record
2009	Team Sian (Captain)	7th place	9–3[14]
2010	Team Sian (Captain)	2nd place	7–2[15]
2011	Team Sian (Captain)	TBD	10–5[16]

As of 10 June 2018 ^[17]

Players who have won international go titles in bold.